CN102683857A - Portable satellite antenna and satellite antenna receiving system - Google Patents

Abstract

The invention discloses a portable satellite antenna, which comprises a feed source, a feed source supporting rod, a reflecting plate, a frame and a reflecting plate elevation angle regulating device, wherein the frame fixes the reflecting plate; one end of the feed source supporting rod is fixedly connected with the feed source; the other end of the feed source supporting rod is fixedly arranged on the frame; the reflecting plate elevation angle regulating device comprises a base, a connecting rod hinged with the base, a sliding chute arranged on the feed source supporting rod and a locking device for locking the position of the connecting rod; the connecting rod can slide relatively to the sliding chute; the reflecting plate is a metamaterial flat plate; the metamaterial flat plate comprises a core layer and a reflecting layer arranged on the surface of one side of the core layer; the core layer comprises one core layer flaky layer or a plurality of same core layer flaky layers; and each core layer flaky layer comprises a flaky first base material and a plurality of first artificial microstructures arranged on the first base material. According to the portable satellite antenna provided by the invention, the reflecting plate is the metamaterial flat plate adopting a metamaterial technique; the elevation angle of the antenna can be adjusted quite conveniently; and moreover, the portable satellite antenna is small and exquisite and is convenient to carry.

Description

A kind of portable satellite antenna and satellite antenna receiving system

Technical field

The present invention relates to the communications field, more particularly, relate to a kind of portable satellite antenna and satellite antenna receiving system.

Background technology

The satellite earth receiving station that traditional satellite antenna receiving system is made up of parabolic reflecting plate, feed, tuner, DVB.Parabolic reflecting plate is responsible for satellite-signal is reflexed to feed and the tuner that is positioned at along.Feed is loudspeaker that are used to collect satellite-signal in the along setting of parabolic reflecting plate, claims corrugated horn again.Its major function has two: the one, and the electromagnetic wave signal that antenna is received collects, and is transformed into signal voltage, the supply high frequency head.The 2nd, the electromagnetic wave that receives is carried out polarization conversion.Tuner LNB (also claiming frequency demultiplier) carries out frequency reducing and signal with the satellite-signal that feed is sent here to amplify and be sent to DVB then.Generally can be divided into C-band frequency LNB (3.7GHz-4.2GHz, 18-21V) and Ku audio range frequency LNB (10.7GHz-12.75GHz, 12-14V).The workflow of LNB is exactly to utilize local oscillation circuit that high-frequency signals is converted to intermediate frequency 950MHz-2050MHz again after earlier the satellite high-frequency signals being amplified to hundreds thousand of times, is beneficial to the transmission of coaxial cable and the mediation work of separating of DVB.DVB is that the satellite-signal that tuner transports is carried out demodulation, demodulates satellite television image or digital signal and audio signal.

During receiving satellite signal, parallel electromagnetic wave converges on the feed after reflecting through parabolic reflecting plate.Usually, the corresponding feed of parabolic reflecting plate is a horn antenna.

But because the Machining of Curved Surface difficulty of the reflecting surface of parabolic reflecting plate is big, required precision is also high, therefore, make trouble, and cost is higher.

Summary of the invention

Technical problem to be solved by this invention is to the big defective of existing satellite antenna manufacturing difficulty of processing, to provide a kind of easy processing and manufacturing and cost low portable satellite antenna.

The technical solution adopted for the present invention to solve the technical problems is: a kind of portable satellite antenna; The framework and the reflecting plate angle regulating device that comprise feed, feed pole, reflecting plate, fixation reflex plate; One end of said feed pole is fixedly connected with feed; The other end is fixed on the framework; Said reflecting plate angle regulating device comprise base, lower end through the hinged connecting rod of first hinge and base, be arranged on chute and the locking device of lock link position on the feed pole; The upper end of said connecting rod is in chute slip relatively under the unlocked state at locking device, and said reflecting plate is dull and stereotyped for ultra material, and said ultra material flat board comprises core layer and is arranged on the reflector of core layer one side surface; Said core layer comprises a core layer lamella or a plurality of identical core layer lamellas, and each core layer lamella comprises first base material of sheet and is arranged on a plurality of first artificial micro-structural on first base material.

Further, said connecting rod is set on the outer surface of feed pole, and said locking device comprises slide bolt and be connected two locking nuts at slide bolt two ends that said slide bolt runs through connecting rod and chute.

Further, said framework comprises upper side frame, middle frame and lower frame, and through being bolted to the back side of reflecting plate, said framework and feed pole are integrally formed respectively for said upper side frame, middle frame and lower frame.

Further; Upper surface with arbitrary core layer lamella is the XY plane, on plane, this core layer lamella upper surface place, is projected as origin of coordinates O with the feed equivalent point, sets up the two-dimensional coordinate system of XOY; This core layer lamella any point (x, refractive index y) satisfies following formula:

$n_{(x,y)}=n_{\max }-\frac{\sqrt{x^2+{\mathrm{<figure-callout\; id="2"\; label="y"\; filenames="HDA0000159130330000051.png,HDA0000159130330000081.png"\; state="\{\{state\}\}">y</figure-callout>}}^2+{z_o}^2}+(y_o-y)\&times;\cos \mathrm{\&gamma;}-(s+\mathrm{k\&lambda;})}{D};$

s＝y _o×cosγ+z _o×sinγ；

$k=\mathrm{floor}\left\{\frac{\sqrt{x^2+{\mathrm{<figure-callout\; id="2"\; label="y"\; filenames="HDA0000159130330000051.png,HDA0000159130330000081.png"\; state="\{\{state\}\}">y</figure-callout>}}^2+{z_o}^2}+(y_o-y)\&times;\cos \mathrm{\&gamma;}-(y_o\&times;\cos \mathrm{\&gamma;}+z_o\&times;\sin \mathrm{\&gamma;})}{\mathrm{\&lambda;}}\right\};$

$D=\frac{\mathrm{\&lambda;}}{n_{\max }-n_{\min }};$

Wherein,

(x y) representes this core layer lamella any point (x, refractive index value y) to n;

z _oExpression feed equivalent point is to the dull and stereotyped vertical range of ultra material;

y _oThe y coordinate figure of intersection point of representing top surface edge and the y axle positive direction of this core layer lamella;

γ represent the elevation angle of the satellite that will communicate by letter;

n _MaxThe maximum of the refractive index of expression core layer lamella;

n _MinThe minimum value of the refractive index of expression core layer lamella;

λ representes that frequency is the electromagnetic wavelength of center of antenna frequency;

Floor representes to round downwards.

Further, the thickness of said core layer is Dh, 2Dh=D.

Further; Said first base material comprises first prebasal plate and first metacoxal plate of sheet, and the said a plurality of first artificial micro-structural is folded between first prebasal plate and first metacoxal plate, and the thickness of said core layer lamella is 0.21-2.5mm; Wherein, The thickness of first prebasal plate is 0.1-1mm, and the thickness of first metacoxal plate is 0.1-1mm, and the thickness of a plurality of first artificial micro-structurals is 0.01-0.5mm.

Further; Said ultra material flat board also comprises the impedance matching layer that is arranged on core layer opposite side surface; Said impedance matching layer comprises an impedance matching layer lamella or the identical impedance matching layer lamella of a plurality of thickness; Said impedance matching layer lamella comprises second base material of sheet and is arranged on a plurality of second artificial micro-structural on second base material that the refraction index profile of said one or more impedance matching layer lamellas satisfies following formula:

$n_i\left(r\right)={n_{\min }}^{\frac{i}{m}}\&times;n{\left(r\right)}^{\frac{m-i}{m}};$

Wherein, n _i(r) radius is the refractive index value at r place on the expression impedance matching layer lamella, and the refraction index profile center of circle of impedance matching layer lamella is the projection of feed equivalent point on plane, corresponding impedance matching layer lamella outer surface place;

Wherein, i representes the numbering of impedance matching layer lamella, and near the m that is numbered of the impedance matching layer lamella of feed, to the core layer direction, numbering reduces successively by feed, is numbered 1 near the impedance matching layer lamella of core layer;

Above-mentioned n _Max, n _MinMaximum, minimum value with the refractive index of core layer lamella is identical respectively.

Further, the thickness of said core layer is Dh, and the thickness of said impedance matching layer is Dz, Dz+2Dh=D.

Further; Said second base material comprises second prebasal plate and second metacoxal plate of sheet, and the said a plurality of second artificial micro-structural is folded between second prebasal plate and second metacoxal plate, and the thickness of said impedance matching layer lamella is 0.21-2.5mm; Wherein, The thickness of second prebasal plate is 0.1-1mm, and the thickness of second metacoxal plate is 0.1-1mm, and the thickness of a plurality of second artificial micro-structurals is 0.01-0.5mm.

Further; The said first artificial micro-structural and the second artificial micro-structural be the metal micro structure for being made up of copper cash or silver-colored line all; Said metal micro structure through etching, plating, brill quarter, photoetching, electronics is carved or ion is carved method respectively attached on first base material and second base material; Said metal micro structure is the plane flakes; Said metal micro structure has first metal wire and second metal wire of vertically dividing equally each other, and said first metal wire is identical with the length of second metal wire, and the said first metal wire two ends are connected with two first metal branches of equal length; The said first metal wire two ends are connected on the mid point of two first metal branches; The said second metal wire two ends are connected with two second metal branches of equal length, and the said second metal wire two ends are connected on the mid point of two second metal branches, the equal in length of the said first metal branch and the second metal branch.

According to portable satellite antenna of the present invention, reflecting plate is dull and stereotyped for the ultra material that adopts ultra material technology, can adjust antenna elevation angle easily, and small and exquisite being easy to carry.And, by the traditional parabolic reflecting plate of the dull and stereotyped replacement of the ultra material of sheet, to make processing and be more prone to, cost is cheaper, and the dull and stereotyped integral thickness of the ultra material of design is in the millimeter rank according to this, and suitable is frivolous.

The present invention also provides a kind of satellite antenna receiving system, comprises tuner that connects feed and the DVB that is connected with tuner, and said satellite antenna receiving system also comprises above-mentioned portable satellite antenna.

Description of drawings

Fig. 1 is the dull and stereotyped relative position sketch map with feed of ultra material in an embodiment of the present invention;

Fig. 2 is the perspective diagram of one of them ultra material cell of core layer lamella of the present invention;

Fig. 3 is the structural representation of core layer lamella of the present invention;

Fig. 4 is the structural representation of impedance matching layer lamella of the present invention;

Fig. 5 is the sketch map of the alabastrine metal micro structure in plane of the present invention;

Fig. 6 is a kind of derived structure of the alabastrine metal micro structure in plane shown in Figure 5;

Fig. 7 is a kind of distressed structure of the alabastrine metal micro structure in plane shown in Figure 5.

Fig. 8 is phase I of differentiation of the topology of the alabastrine metal micro structure in plane;

Fig. 9 is the second stage of differentiation of the topology of the alabastrine metal micro structure in plane;

Figure 10 is the relative position sketch map of the dull and stereotyped and feed of ultra material among the another kind of embodiment of the present invention;

Figure 11 is the structural representation of portable satellite antenna of the present invention;

Figure 12 is the floor map of square core layer lamella of the present invention;

Figure 13 is the floor map of the core layer lamella of circle of the present invention;

Figure 14 is another visual angle figure of Figure 11.

Embodiment

Shown in Figure 11 and 14; Portable satellite antenna according to this invention; The framework 3 and the reflecting plate angle regulating device that comprise feed 1, feed pole 2, reflecting plate 100, fixation reflex plate; One end of said feed pole 2 is fixedly connected with feed 1; The other end is fixed on the framework 3, said reflecting plate angle regulating device comprise base 4, lower end through the hinged connecting rod 5 of the first hinge JL1 and base 4, be arranged on chute HC and the locking device of lock link position on the feed pole 2, the upper end of said connecting rod 5 is under the unlocked state relatively at locking device that chute HC slides.Among the present invention, said feed 1 is traditional corrugated horn, for example the CL11R integral high frequency head of Tongzhou Electronics.

In the present embodiment, said connecting rod 5 is set on the outer surface of feed pole 2, and said locking device comprises slide bolt 6 and be connected two locking nuts 7 at slide bolt 6 two ends that said slide bolt 6 runs through connecting rod 5 and chute HC.Realize the slide relative of connecting rod and feed pole through the slip of slide bolt 6 in chute, like this, be fixed at base under the situation on ground, unscrew locking nut 7, can realize adjusting the reflecting plate elevation angle.

In the present embodiment; Said framework 3 comprises upper side frame 31, middle frame 32 and lower frame 33; Said upper side frame 31, middle frame 32 and lower frame 33 are fixed on the back side of reflecting plate respectively through bolt LS, said framework 3 is integrally formed with feed pole 2, for example is integrally formed through welding.

In the present embodiment, shown in figure 11, said portable satellite antenna also comprises ground strip DP.Be used for after the elevation location of antenna is adjusted, jointly antenna being fixed on ground with base.

The elevation angle of reflecting plate 100 is regulated (formerly having confirmed under good azimuthal situation) specific as follows:

At first, base 4 is fixed on the ground, for example on the ground with the nail nail; After fixing, the lower surface and the ground of base are adjacent to.

Then, unscrew locking nut 7 (promptly removing the locking position of connecting rod);

Upwards lift reflecting plate 100, because reflecting plate and the through transport of feed pole, so feed pole can be slided by relative connecting rod 5; By the time appropriate location; Tighten locking nut 7 (being the position of lock link), the appropriate location here is meant, the elevation angle of reflecting plate just equal the satellite that will communicate by letter at the elevation angle in this geographical position; The elevation angle that has promptly reached reflecting plate is regulated, and has realized that promptly the elevation angle of antenna is regulated.

At last, ground strip DP is also followed closely on the ground.Like this, the antenna after adjusting is very firm, can not receive, for example the influence of wind.

Among the present invention,, can realize the rotation angle range of reflecting plate, for example the 0-12 degree with respect to base through the size design of mechanical structure.Reflecting plate is following with respect to the rotatable low-angle benefit of base:

(1) not at ordinary times, can fine adjustment on ground;

(2) the dull and stereotyped design (refraction index profile) of same ultra material can be satisfied the needs (for example different cities and counties, Guangdong Province) of different regions, only needs the fine setting reflecting plate to get final product.

Extremely shown in Figure 4 like Fig. 1; In one embodiment of the present of invention; Said ultra material dull and stereotyped 100 comprises core layer 10, is arranged on the reflector 200 on core layer one side surface and is arranged on the surperficial impedance matching layer 20 of core layer opposite side; Said core layer 10 comprises a core layer lamella 11 or the core layer lamella 11 that a plurality of thickness is identical and refraction index profile is identical; Said core layer lamella comprises first base material 13 of sheet and is arranged on a plurality of first artificial micro-structural 12 on first base material 13; Said impedance matching layer 20 comprises an impedance matching layer lamella 21 or the identical a plurality of impedance matching layer lamellas 21 of thickness, and said impedance matching layer lamella 21 comprises second base material 23 of sheet and is arranged on a plurality of second artificial micro-structural on second base material.In addition, among the present invention, the reflector can be for having the metallic reflection plate on smooth surface, for example can be copper coin, aluminium sheet or the iron plate etc. of polishing, and also PEC (desired electrical conductor) reflecting surface can certainly be a metal coating, for example copper coating.Among the present invention, the dull and stereotyped 100 arbitrary longitudinal sections of said ultra material are of similar shape and area, and the longitudinal section here is meant in the ultra material flat board the vertical section in axis with ultra material flat board.The dull and stereotyped longitudinal section of said ultra material can be for square, also is the square of circular or oval for example 300X300mm or 450X450mm, and perhaps diameter is 250,300 or the circle of 450mm.The effect of impedance matching layer is to realize from the air to the core layer 10 impedance matching, to reduce the reflection of electromagnetic wave of air and ultra material joint, reduces the loss of electromagnetic wave energy, raising satellite TV signal intensity.

Like Fig. 1, Figure 12 and shown in Figure 13; Upper surface (for example can be the upper surface of outermost core layer lamella) with arbitrary core layer lamella is the XY plane, is origin of coordinates O with the projection (the O point among Fig. 1) of feed equivalent point X on this plane, core layer lamella upper surface place, sets up the two-dimensional coordinate system of XOY; Preferably; For example, when the core layer lamella was square, the y axle was vertically divided the two edges of the core layer lamella of its process equally; When the core layer lamella was circular, the y axle overlapped with its diameter; When the core layer lamella was oval, the y axle overlapped with its major axis; This core layer lamella any point (x, refractive index y) satisfies following formula:

$n_{(x,y)}=n_{\max }-\frac{\sqrt{x^2+{\mathrm{<figure-callout\; id="2"\; label="y"\; filenames="HDA0000159130330000051.png,HDA0000159130330000081.png"\; state="\{\{state\}\}">y</figure-callout>}}^2+{{\mathrm{<figure-callout\; id="2"\; label="z\; o"\; filenames="HDA0000159130330000051.png,HDA0000159130330000081.png"\; state="\{\{state\}\}">z</figure-callout>}}_o}^2}+(y_o-y)\&times;\cos \mathrm{\&gamma;}-(s+\mathrm{k\&lambda;})}{D}---\left(1\right);$

s＝y _o×cosγ+z _o×sinγ(2)；

$k=\mathrm{floor}\left\{\frac{\sqrt{x^2+{\mathrm{<figure-callout\; id="2"\; label="y"\; filenames="HDA0000159130330000051.png,HDA0000159130330000081.png"\; state="\{\{state\}\}">y</figure-callout>}}^2+{{\mathrm{<figure-callout\; id="2"\; label="z\; o"\; filenames="HDA0000159130330000051.png,HDA0000159130330000081.png"\; state="\{\{state\}\}">z</figure-callout>}}_o}^2}+(y_o-y)\&times;\cos \mathrm{\&gamma;}-(y_o\&times;\cos \mathrm{\&gamma;}+z_o\&times;\sin \mathrm{\&gamma;})}{\mathrm{\&lambda;}}\right\}---\left(3\right);$

$D=\frac{\mathrm{\&lambda;}}{n_{\max }-n_{\min }}---\left(4\right);$

Fig. 1 be feed axis Z1 with the plane that constituted of the geostationary satellite (equivalence for a bit) that will communicate by letter dissect ultra material flat board and the resulting cutaway view of feed two parts in the portable satellite antenna of present embodiment, also be that ultra material flat board and the resulting cutaway view of feed two parts in the portable satellite antenna of present embodiment dissectd on plane that y axle and feed axis are constituted.

Wherein, (x y) representes this core layer lamella any point (x, refractive index value y) to n;

z _oExpression feed equivalent point is to the dull and stereotyped vertical range of ultra material; In fact the equivalent point X of feed is exactly the feedback point (point of focusing takes place in feed electromagnetic wave) of antenna here; The angle of the dull and stereotyped upper surface of feed axis Z1 and ultra material is θ; In the present embodiment; The equivalent point X of feed is on the Z1 of feed axis; Suppose that feed bore mid point is ds to the distance of the equivalent point X of feed, can become ginseng (promptly letting feed scan the optimum position), make convergence effect optimum through change ds, these two of θ;

y _oThe y coordinate figure of intersection point of representing top surface edge and the y axle positive direction of this core layer lamella; Shown in figure 12, the core layer lamella is square, y _oBe the length of the O A line segment among the figure.Shown in figure 13, the core layer lamella is circular, y _oBe the length of the O A line segment among the figure.

γ represent the elevation angle of the satellite that will communicate by letter, elevation angle gamma is relevant with the satellite that will communicate by letter and the residing longitude and latitude of mobile vehicle;

n _MaxThe maximum of the refractive index of expression core layer lamella;

n _MinThe minimum value of the refractive index of expression core layer lamella;

λ representes that frequency is the electromagnetic wavelength of center of antenna frequency;

In the present embodiment, the thickness of said core layer is Dh, and the thickness of said impedance matching layer is Dz, Dz+2Dh=D.

Floor representes to round downwards;

For example; More than or equal to 0 less than 1 the time, k gets 0 as

; As (less than 2 the time more than or equal to 1; K gets 1, and the rest may be inferred.

Dull and stereotyped by the determined ultra material of formula (1) to formula (4), can be after can making electromagnetic wave that feed sends through ultra material flat board with form outgoing horizontal by the plane wave at γ angle; Equally; As shown in Figure 1; Dull and stereotyped by the determined ultra material of formula (1) to formula (4), the electromagnetic wave that the satellite that can make institute to communicate by letter sends (arrival can think with horizontal plane angle to be the plane wave of γ during ground) can converge at the equivalent point X place of feed behind ultra material flat board.

In the present embodiment, as shown in Figure 3, said first base material 13 comprises first prebasal plate 131 and first metacoxal plate 132 of sheet, and the said a plurality of first artificial micro-structural 12 is folded between first prebasal plate 131 and first metacoxal plate 132.The thickness of said core layer lamella is 0.5-2mm, and wherein, the thickness of first prebasal plate is 0.5-1mm, and the thickness of first metacoxal plate is 0.5-1mm, and the thickness of a plurality of first artificial micro-structurals is 0.01-0.5mm.Preferably, the thickness of said core layer lamella is 0.543mm, and wherein, the thickness of first prebasal plate and first metacoxal plate is 0.254mm, and the thickness of a plurality of first artificial micro-structurals is 0.035mm.

In the present embodiment, the refraction index profile of said one or more impedance matching layer lamellas satisfies following formula:

$n_i\left(r\right)={n_{\min }}^{\frac{i}{m}}\&times;n{\left(r\right)}^{\frac{m-i}{m}}---\left(5\right);$

Wherein, n _i(r) radius is the refractive index value at r place on the expression impedance matching layer lamella; The refraction index profile center of circle of impedance matching layer lamella is the projection of feed equivalent point on plane, corresponding impedance matching layer lamella outer surface place; Preferably, the refraction index profile center of circle of impedance matching layer lamella is dull and stereotyped with the vertical ultra material of line in the refraction index profile center of circle of core layer lamella;

Wherein, i representes the numbering of impedance matching layer lamella, and near the m that is numbered of the impedance matching layer lamella of feed, to the core layer direction, numbering reduces successively by feed, is numbered 1 near the impedance matching layer lamella of core layer;

Above-mentioned n _Max, n _MinMaximum, minimum value with the refractive index of core layer lamella is identical respectively;

Particularly, m=2 for example, the impedance matching layer that is then limited formula (5) near the refraction index profile of the impedance matching layer lamella of core layer is:

$n_1\left(r\right)={{\mathrm{<figure-callout\; id="1"\; label="n\; min"\; filenames="HDA0000159130330000081.png,HDA0000159130330000111.png"\; state="\{\{state\}\}">n</figure-callout>}}_{\min }}^{\frac{1}{2}}\&times;n{\left(r\right)}^{\frac{1}{2}};$

Its refraction index profile of impedance matching layer near feed is:

n ₂(r)＝n _min；

Certainly, impedance matching layer is not limited to this, and said each impedance matching layer lamella also can have single refractive index, and the refractive index of said one or more impedance matching layer lamellas satisfies following formula:

$n\left(i\right)={((n_{\max }+n_{\min })/2)}^{\frac{i}{m}}---\left(6\right);$

Wherein, m representes total number of plies of impedance matching layer, and i representes the numbering of impedance matching layer lamella, wherein, and near the m that is numbered of the impedance matching layer lamella of core layer.

Particularly, m=2 for example, the impedance matching layer that is then limited formula (6) near the refraction index profile of the impedance matching layer lamella of core layer is:

n(2)＝(n _max+n _min)/2；

Its refraction index profile of impedance matching layer near feed is:

$n\left(1\right)={((n_{\max }+n_{\min })/2)}^{\frac{1}{2}}.$

In the present embodiment, said second base material 23 comprises second prebasal plate 231 and second metacoxal plate 232 of sheet, and the said a plurality of second artificial micro-structural is folded between second prebasal plate 231 and second metacoxal plate 232.The thickness of said impedance matching layer lamella is 0.21-2.5mm, and wherein, the thickness of first prebasal plate is 0.1-1mm, and the thickness of first metacoxal plate is 0.1-1mm, and the thickness of a plurality of first artificial micro-structurals is 0.01-0.5mm.Preferably, the thickness of said impedance matching layer lamella is 0.543mm, and wherein, the thickness of second prebasal plate and second metacoxal plate is 0.254mm, and the thickness of a plurality of second artificial micro-structurals is 0.035mm.

In the present embodiment; The dull and stereotyped arbitrary longitudinal section of said ultra material is of similar shape and area; Be that core layer and matching layer are of similar shape the longitudinal section with area, the longitudinal section here is meant in the ultra material flat board and the dull and stereotyped vertical section in axis of ultra material.Preferably, the dull and stereotyped longitudinal section of said ultra material is a square, and processing is very easy to.

In the present embodiment; The said first artificial micro-structural, the second artificial micro-structural be the metal micro structure for being made up of copper cash or silver-colored line all, said metal micro structure through etching, plating, brill quarter, photoetching, electronics is carved or ion is carved method respectively attached to first base material, second base material.Preferably, the said first artificial micro-structural, the second artificial micro-structural are the alabastrine metal micro structure in plane shown in Figure 5 develops a plurality of different topology that obtains through topology metal micro structure.

In the present embodiment; The core layer lamella can obtain through following method, promptly on any one surface of first prebasal plate and first metacoxal plate, covers copper, obtains a plurality of first metal micro structures (shape of a plurality of first metal micro structures with arrange in advance through the Computer Simulation acquisition) through etching method again; At last first prebasal plate and first metacoxal plate are pressed together respectively; Promptly obtain core layer lamella of the present invention, the method for pressing can be direct hot pressing, also can be to utilize PUR to connect; Certainly also other mechanical connection, for example bolt connects.

In like manner, the impedance matching layer lamella also can utilize identical method to obtain.Respectively with a plurality of core layer lamella pressing one, promptly formed core layer of the present invention then; Equally, with a plurality of impedance matching layer lamella pressing one, promptly formed impedance matching layer of the present invention; It is dull and stereotyped that core layer, impedance matching layer, reflector pressing one are promptly obtained ultra material of the present invention.

In the present embodiment, said first base material, second base material are made by ceramic material, macromolecular material, ferroelectric material, ferrite material or ferromagnetic material etc.Macromolecular material is available to have F4B composite material, FR-4 composite material etc.

Shown in Figure 5 is the sketch map of the alabastrine metal micro structure in plane; Described alabastrine metal micro structure has the first metal wire J1 and the second metal wire J2 that vertically divides equally each other; The said first metal wire J1 is identical with the length of the second metal wire J2; The said first metal wire J1 two ends are connected with two first F1 of metal branch of equal length; The said first metal wire J1 two ends are connected on the mid point of two first F1 of metal branch; The said second metal wire J2 two ends are connected with two second F2 of metal branch of equal length, and the said second metal wire J2 two ends are connected on the mid point of two second F2 of metal branch, the equal in length of said first F1 of metal branch and second F2 of metal branch.

Fig. 6 is a kind of derived structure of the alabastrine metal micro structure in plane shown in Figure 5.Its two ends at each first F1 of metal branch and each second F2 of metal branch all are connected with identical the 3rd F3 of metal branch, and the mid point of corresponding the 3rd F3 of metal branch links to each other with the end points of first F1 of metal branch and second F2 of metal branch respectively.The rest may be inferred, and the present invention can also derive the metal micro structure of other form.

Fig. 7 is a kind of distressed structure of the alabastrine metal micro structure in plane shown in Figure 5; The metal micro structure of this kind structure; The first metal wire J1 and the second metal wire J2 are not straight lines; But folding line, the first metal wire J1 and the second metal wire J2 are provided with two kink WZ, divide equally but the first metal wire J1 remains vertical with the second metal wire J2; Through be provided with kink towards with the relative position of kink on first metal wire and second metal wire, make metal micro structure shown in Figure 7 wind to revolve the figure that turn 90 degrees with the axis of the second metal wire intersection point to any direction all to overlap with former figure perpendicular to first metal wire.In addition, other distortion can also be arranged, for example, the first metal wire J1 and the second metal wire J2 all are provided with a plurality of kink WZ.

In the present embodiment; Said core layer lamella 11 can be divided into the ultra material cell D a plurality of as shown in Figure 2 of array arrangement; Each ultra material cell D comprises prebasal plate unit U, metacoxal plate unit V and is arranged on the first artificial micro-structural 12 between base board unit U, the metacoxal plate unit V that the length and width height of ultra material cell D all is not more than 1/5th wavelength usually, is preferably 1/10th wavelength; Therefore, can confirm the size of ultra material cell D according to the operating frequency of antenna.Fig. 2 is the technique of painting of perspective, and as shown in Figure 2 with the position among the ultra material cell D that representes the first artificial micro-structural, the said first artificial micro-structural is sandwiched between base board unit U, the metacoxal plate unit V, and its surface, place is represented with SR.

Known refractive index

wherein μ is a relative permeability; ε is a relative dielectric constant, and μ and ε close and be called electromagnetic parameter.Experiment showed, when electromagnetic wave passes through refractive index dielectric material heterogeneous, can be to the big direction deviation of refractive index.Under the certain situation of relative permeability (usually near 1); Refractive index is only relevant with dielectric constant; Under the situation that first base material is selected, utilize the arbitrary value (within the specific limits) that only can realize ultra material cell refractive index, under this center of antenna frequency to the first artificial micro-structural of electric field response; Utilize simulation software; Like CST, MATLAB, COMSOL etc., the dielectric constant of artificial micro-structural (the alabastrine metal micro structure in plane as shown in Figure 5) that obtains a certain given shape through emulation can be listed data one to one along with the situation that the refractive index variable of topology changes; The core layer lamella 11 that the specific refractive index that can design us needs distributes in like manner can obtain the refraction index profile of impedance matching layer lamella.

In the present embodiment, the structural design of core layer lamella can obtain through Computer Simulation (CST emulation), and is specific as follows:

That (1) confirms first metal micro structure adheres to base material (first base material).For example dielectric constant is 2.25 medium substrate, and the material of medium substrate can be FR-4, F4b or PS.

(2) size of definite ultra material cell.The size of the size of ultra material cell is obtained by the centre frequency of antenna, utilizes frequency to obtain its wavelength, gets less than 1/5th a numerical value of wavelength length C D and the width KD as ultra material cell D again.For example corresponding to the center of antenna frequency of 11.95G, said ultra material cell D is that long CD and wide KD as shown in Figure 2 is 2.8mm, thickness HD is the square platelet of 0.543mm.

(3) confirm the material and the topological structure of metal micro structure.Among the present invention, the material of metal micro structure is a copper, and the topological structure of metal micro structure is the alabastrine metal micro structure in plane shown in Figure 5, and its live width W is consistent everywhere; The topological structure here is meant the basic configuration that topology develops.

(4) confirm the topology parameter of metal micro structure.As shown in Figure 5, among the present invention, the topology parameter of the alabastrine metal micro structure in plane comprises the live width W of metal micro structure, the length a of the first metal wire J1, the length b of first F1 of metal branch.

(5) confirm the differentiation restrictive condition of the topology of metal micro structure.Among the present invention; The differentiation restrictive condition of the topology of metal micro structure has, the minimum spacing WL between the metal micro structure (promptly as shown in Figure 5, the long limit of metal micro structure and ultra material cell or the distance of broadside are WL/2); The live width W of metal micro structure, the size of ultra material cell; Because the processing technology restriction, WL is more than or equal to 0.1mm, and same, live width W is greater than to equal 0.1mm.During emulation for the first time, WL can get 0.1mm, and W can get 0.3mm, and ultra material cell is of a size of the long and wide 2.8mm that is, thickness is 0.543mm, and this moment, the topology parameter of metal micro structure had only a and two variablees of b.The topology of metal micro structure through as Fig. 7 differentiation mode shown in Figure 8 extremely, corresponding to a certain CF (for example 11.95GHZ), can obtain a continuous variations in refractive index scope.

Particularly, the differentiation of the topology of said metal micro structure comprises two stages (basic configuration that topology develops is a metal micro structure shown in Figure 5):

Phase I: according to developing restrictive condition, under the situation that the b value remains unchanged, a value is changed to maximum from minimum value, the metal micro structure in this evolution process is " ten " font (except when a gets minimum value).In the present embodiment, the minimum value of a is 0.3mm (live width W), and the maximum of a is (CD-WL).Therefore, in the phase I, the differentiation of the topology of metal micro structure is as shown in Figure 8, is the square JX1 of W from the length of side promptly, develops into maximum " ten " font topology JD1 gradually.In the phase I, along with the differentiation of the topology of metal micro structure, the refractive index of the ultra material cell corresponding with it increases (respective antenna one CF) continuously.

Second stage: according to developing restrictive condition, when a was increased to maximum, a remained unchanged; At this moment, b is increased continuously maximum from minimum value, the metal micro structure in this evolution process is the plane flakes.In the present embodiment, the minimum value of b is 0.3mm, and the maximum of b is (CD-WL-2W).Therefore; In second stage, the differentiation of the topology of metal micro structure is as shown in Figure 9, promptly from " ten " font topology JD1 of maximum; Develop into the maximum alabastrine topology JD2 in plane gradually; The alabastrine topology JD2 in the plane of the maximum here is meant that the length b of first J1 of metal branch and second J2 of metal branch can not extend again, otherwise the first metal branch and the second metal branch will take place to intersect.In second stage, along with the differentiation of the topology of metal micro structure, the refractive index of the ultra material cell corresponding with it increases (respective antenna one CF) continuously.

Comprised n if obtain the variations in refractive index scope of ultra material cell through above-mentioned differentiation _MinTo n _MaxContinuous excursion, then satisfy design demand.Do not satisfy design demand if above-mentioned differentiation obtains the variations in refractive index scope of ultra material cell, for example maximum is too little or minimum value is excessive, then changes WL and W, and emulation again is up to obtaining the variations in refractive index scope that we need.

According to formula (1) to (4); After a series of ultra material cell that emulation is obtained is arranged according to its corresponding refractive index (in fact being exactly a plurality of first artificial micro-structural the arranging on first base material of different topology shape), can obtain core layer lamella of the present invention.

In like manner, can obtain impedance matching layer lamella of the present invention according to formula (5)-(6).

Shown in figure 10, among the another kind of embodiment of the present invention, said ultra material dull and stereotyped 100 does not have impedance matching layer, and in this embodiment, the thickness of said core layer is Dh, 2Dh=D.Other identical with the above embodiments.

Equally; Figure 10 be feed the axis with the plane that constituted of the geostationary satellite (equivalence for a bit) that will communicate by letter dissect ultra material flat board and the resulting cutaway view of feed two parts in the portable satellite antenna of present embodiment, also be that ultra material flat board and the resulting cutaway view of feed two parts in the portable satellite antenna of present embodiment dissectd on plane that y axle and feed axis are constituted.

In addition, the present invention also provides a kind of satellite antenna receiving system, comprises the tuner 30 that connects feed 1 and the DVB that is connected through cable with tuner 30 (not indicating among the figure) and portable satellite antenna of the present invention.Among the present invention, said feed 1 is traditional corrugated horn.DVB and tuner also are existing technology, no longer state here.

Said feed for example can be the CL11R integral high frequency head of Tongzhou Electronics, and incoming frequency is 11.7～12.2GHz, and output frequency is 950～1450MHz, can watch most of Ku band satellite TV.

DVB for example can adopt the N6188 of Tongzhou Electronics, is used to receive the satellite TV signal of No. 9, culminant star.

Combine accompanying drawing that embodiments of the invention are described above; But the present invention is not limited to above-mentioned embodiment, and above-mentioned embodiment only is schematically, rather than restrictive; Those of ordinary skill in the art is under enlightenment of the present invention; Not breaking away under the scope situation that aim of the present invention and claim protect, also can make a lot of forms, these all belong within the protection of the present invention.

Claims (11)

1. portable satellite antenna; It is characterized in that; The framework and the reflecting plate angle regulating device that comprise feed, feed pole, reflecting plate, fixation reflex plate; One end of said feed pole is fixedly connected with feed; The other end is fixed on the framework, said reflecting plate angle regulating device comprise base, lower end through the hinged connecting rod of first hinge and base, be arranged on chute and the locking device of lock link position on the feed pole, the upper end of said connecting rod is under the unlocked state relatively at locking device that chute slides; Said reflecting plate is dull and stereotyped for ultra material; Said ultra material flat board comprises core layer and is arranged on the reflector of core layer one side surface, and said core layer comprises a core layer lamella or a plurality of identical core layer lamellas, and each core layer lamella comprises first base material of sheet and is arranged on a plurality of first artificial micro-structural on first base material.

2. portable satellite antenna according to claim 1; It is characterized in that; Said connecting rod is set on the outer surface of feed pole, and said locking device comprises slide bolt and be connected two locking nuts at slide bolt two ends that said slide bolt runs through connecting rod and chute.

3. portable satellite antenna according to claim 1; It is characterized in that; Said framework comprises upper side frame, middle frame and lower frame, and through being bolted to the back side of reflecting plate, said framework and feed pole are integrally formed respectively for said upper side frame, middle frame and lower frame.

4. portable satellite antenna according to claim 1; It is characterized in that; Upper surface with arbitrary core layer lamella is the XY plane, on plane, this core layer lamella upper surface place, is projected as origin of coordinates O with the feed equivalent point, sets up the two-dimensional coordinate system of XOY; This core layer lamella any point (x, refractive index y) satisfies following formula:

$n_{(x,y)}=n_{\max }-\frac{\sqrt{x^2+y^2+{z_o}^2}+(y_o-y)\&times;\cos \mathrm{\&gamma;}-(s+\mathrm{k\&lambda;})}{D};$

s＝y _o×cosγ+z _o×sinγ；

$k=\mathrm{floor}\left\{\frac{\sqrt{x^2+y^2+{z_o}^2}+(y_o-y)\&times;\cos \mathrm{\&gamma;}-(y_o\&times;\cos \mathrm{\&gamma;}+z_o\&times;\sin \mathrm{\&gamma;})}{\mathrm{\&lambda;}}\right\};$

$D=\frac{\mathrm{\&lambda;}}{n_{\max }-n_{\min }};$

Wherein,

n _{(x, y)}Represent this core layer lamella any point (x, refractive index value y);

z _oExpression feed equivalent point is to the dull and stereotyped vertical range of ultra material;

y _oThe y coordinate figure of intersection point of representing top surface edge and the y axle positive direction of this core layer lamella;

γ represent the elevation angle of the satellite that will communicate by letter;

n _MaxThe maximum of the refractive index of expression core layer lamella;

n _MinThe minimum value of the refractive index of expression core layer lamella;

λ representes that frequency is the electromagnetic wavelength of center of antenna frequency;

Floor representes to round downwards.

5. portable satellite antenna according to claim 4 is characterized in that, the thickness of said core layer is Dh, 2Dh=D.

6. portable satellite antenna according to claim 4 is characterized in that, said first base material comprises first prebasal plate and first metacoxal plate of sheet; The said a plurality of first artificial micro-structural is folded between first prebasal plate and first metacoxal plate; The thickness of said core layer lamella is 0.21-2.5mm, and wherein, the thickness of first prebasal plate is 0.1-1mm; The thickness of first metacoxal plate is 0.1-1mm, and the thickness of a plurality of first artificial micro-structurals is 0.01-0.5mm.

7. portable satellite antenna according to claim 4; It is characterized in that; Said ultra material flat board also comprises the impedance matching layer that is arranged on core layer opposite side surface; Said impedance matching layer comprises an impedance matching layer lamella or the identical impedance matching layer lamella of a plurality of thickness; Said impedance matching layer lamella comprises second base material of sheet and is arranged on a plurality of second artificial micro-structural on second base material that the refraction index profile of said one or more impedance matching layer lamellas satisfies following formula:

$n_i\left(r\right)={n_{\min }}^{\frac{i}{m}}\&times;n{\left(r\right)}^{\frac{m-i}{m}};$

Wherein, n _i(r) radius is the refractive index value at r place on the expression impedance matching layer lamella, and the refraction index profile center of circle of impedance matching layer lamella is the projection of feed equivalent point on plane, corresponding impedance matching layer lamella outer surface place;

Wherein, i representes the numbering of impedance matching layer lamella, and near the m that is numbered of the impedance matching layer lamella of feed, to the core layer direction, numbering reduces successively by feed, is numbered 1 near the impedance matching layer lamella of core layer;

Above-mentioned n _Max, n _MinMaximum, minimum value with the refractive index of core layer lamella is identical respectively.

8. portable satellite antenna according to claim 7 is characterized in that, the thickness of said core layer is Dh, and the thickness of said impedance matching layer is Dz, Dz+2Dh=D.

9. portable satellite antenna according to claim 4 is characterized in that, said second base material comprises second prebasal plate and second metacoxal plate of sheet; The said a plurality of second artificial micro-structural is folded between second prebasal plate and second metacoxal plate; The thickness of said impedance matching layer lamella is 0.21-2.5mm, and wherein, the thickness of second prebasal plate is 0.1-1mm; The thickness of second metacoxal plate is 0.1-1mm, and the thickness of a plurality of second artificial micro-structurals is 0.01-0.5mm.

10. portable satellite antenna according to claim 4; It is characterized in that; The said first artificial micro-structural and the second artificial micro-structural be the metal micro structure for being made up of copper cash or silver-colored line all; Respectively attached on first base material and second base material, said metal micro structure is the plane flakes to said metal micro structure through etching, plating, brill quarter, photoetching, electronics is carved or ion is carved method, and said metal micro structure has first metal wire and second metal wire of vertically dividing equally each other; Said first metal wire is identical with the length of second metal wire; The said first metal wire two ends are connected with two first metal branches of equal length, and the said first metal wire two ends are connected on the mid point of two first metal branches, and the said second metal wire two ends are connected with two second metal branches of equal length; The said second metal wire two ends are connected on the mid point of two second metal branches, the equal in length of the said first metal branch and the second metal branch.

11. a satellite antenna receiving system comprises tuner that connects feed and the DVB that is connected with tuner, it is characterized in that said satellite antenna receiving system also comprises like any described portable satellite antenna of claim 1 to 10.

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